Machine for making tubes.



G. A. LUTZ.

MACHINE FOR MAKING TUBES.

APPLICATION FILED SBPT.21, 1907.

931,134. Y Patented Aug. 17, 1909.

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G. A. LUTZ.

MACHINE FOR MAKING TUBES. APPLICATION FILED sEPI'.2I,1907.

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APPLICATION FILED' SEPT. 21, 1907.

Patented Aug. 17, 1909.

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j 5 f. a? 03m UNITED STATES PATENT. oFFIoE.

GEORGE A. LUTZ, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN CIRCULAR LOOM COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

' 'MAGHINE For. MAKING Tous.'

Specification of Letters Patent'.

Patented Aug. 17,. 1909.

Tov all whom it may concern:

Be it known that I, GEORGE A. Lu'rz, a'

citizen of the United States, and resident of New York city, borough of Brooklyn,in the county of Kings and State of New York,`

have invented certain new and useful Improvements in Machines for Making Tubes, of which the following is a specification.

My invention has for its object to provide means for Winding strips of paper, tape or analogous flexible material into tubular form, and wherein two strips may be spirally Wound one upon the other with their convolutions wound in opposite directions.

My invention comprises a rotative mandrel adapted to Wind a flexible strip or tape thereon, means for guiding the strip or tape to the mandrel, a rotative roll in contact with the strip wound on the mandrel and located in such position as to push the strip along the mandrel substantially -as it -is wound thereon, and I also provide means for operatively supporting a tape or strip to carry the same around the spirally wound tube upon the mandrel, whereby said tape or strip may be wound in a direction reverse'. to the windingof the first named strip.

My invention also comprises the novel arrangements and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had tothe accompanying drawings forming part hereof, wherein,

.Figure 1 is a side elevation of a machine embodying my invention partly Ibroken away, Fig. 2 is a plan view thereof, one of the reels being removed, Fig. 3 is a longitudinal section illustrating the mandrel and associated parts, Fig. 4. is ya detail side view, showing the manner of winding the strips upon the mandrel, Fig. 5 is an end view looking from the left in Fig. 1, Figs. 6 and 7 are section detail views through the mandrel, and Fig, 8 is a detail plan view show'- ing the inner strip being wound upon the mandrel.

Similar characters of reference indicate4 8 and 8a maybe made integral, or may be separate parts secured together, as by a pin 10,. as shown in Fig. 3. A. sprocket wheel 11 is shown secured to the shaft part 8a of the mandrel and receives the chain 12. from a sprocket wheel 13 on a shaft 14 hung in Vsuitable bearings upon frame 1 and provided with a' gear 15, whereby the mandrel may be rotated at the desired s ed from a driving shaft. At 16 is 'a ree or support for a strip of paper, liber or the like 17, which reel revolves upon a suitable stud or spindle 18 shown carried by a support 19 depending from part 7, as by being connected to lug 7a by a screw 20, whereby the reel may be adjusted at a suitable angle with v respect to the axis of mandrel 8. A thumb nut 162l and suitable friction devices detachably support the reel upon shaft 18 with the desired frietional resistance te rotation of the reel. Loosely surrounding mandrel il is a wormlike or spirally disposed guide 8b, of suitable pitch, through which strip 17 passes as it is being wound upon the mandrel, which guide serves to direct the strip 17 at the desired angle. rIhe guide 8b may be formed integral with a ollar or cap 8e or may be made separate and secured thereto in suitable manner, which collar or cap is secured at the end of tube or bearing 5, and themandrel rotates within the bore of said collar or cap. l

' `With the arrangements described the strip 17 is first laid around the mandrel a few turns and then the latter is rotated, and thereupon the strip is Wound upon the man- .drel so that the edges of the convolutions of the strip aline. 'Io assist in pushing or sliding the tube 17a along the mandrel as it is wound thereon I provide a rotative friction roll o1' disk 21 that is shown bearing upon tube 17a adjacent guide 8b, and said roll rotates in a plane at an oblique angle across the axis of mandrel 8 in such manner as to have a forwardly pushing action upon the tube wound upon the mandrel. The friction roll 21 is shown carried by a shaft 22 that extends at an acute angle with respect to mandrel 8, and said shaft is shown journaled in bearings 6b, 7b, ofv caps G, 7. Said shaft carries a gear Wheel 23, that meshes with a. pinion 24 secured upon the mandrel extension or shaft 8a. The ratio of the gears 23, 24 is shown substantially as 4 to 1, Wherebythe friction roll 21 rotates at a slower speed than the mandrel, although the relative speeds of rotation of said roll and mandrel may be such as desired. As the strip 17 is being wound upon the mandrel, the friction roll 21 by beingv in contact with the wound strip or tube and rotating in the direction reverse to the winding of the strip, and being located at an angle to the axis of the tube 17a formed by the wound strip, serves to propel such tube along the mandrel.

At 25 is a strip of tape or other suitable iexible material adapted to be wound around the spirally wound tubing 17a, and lit is shown carried by'a reel 26 ,supported by a stud or spindle 27 shown carried by an arm 28 attached to a sleeve or hub 29 secured upon a hollow shaft 30 that is journaled in a bearing 31 carried by standard 4. Arm 28 is shown adjustably supported by a screw 32 carried by lugs 29a of hub 29, whereby reel 26 may be adjusted at the desired angle with respect to the axis of mandrel 8.

At 33 is a counterweight carried by hub 29 to balance reel 26.

. Shaft 30 isshown provided with a sprocket wheel 34 receiving a chain 35 which passes over a sprocket wheel 36 which may be on an extension of shaft 14, but which is shown on a shaft 37 hung in suitable bearings carried by frame 1, said shaft having a gear wheel 38 in mesh with an idle gear 15a meshing with gear 15, fast and loose pulleys 39, 40 on shaft 37 serving to rotate the latter in the desired direction, whereby reel- 26 and tape 25 are carried around the mandrel in the direction of rotation of the latter. By suitably arranging the diameters of sprockets 36 and 13, or 34 and 11, relatively to each other, the reel support 26 can be rotated faster than the mandrel to cause strip 25 to wind about the mandrel around tube 17a. f

To produce the tube 17b with the means above described strip 17 isy first coiled upon the mandrel and pushed along the same a suitable distance, and then strip 25 is coiled around the tube 17 a and the machine is then.

reverse in direction Jtothe 'convolutions of" strip 2 5, forming the tube 17 b comprising the two spirally woundv strips, andsaid tube passes from the mandrel through the bore 30it of shaft'30. Strip 25 may be wider than strip 17 so that while the convolutions of the latter lie edge to edge in alinement the convolutions of strip 25 will overlap, each other as much as desired, and in accordance with the inclination o reel 26 with respect to a planev located at an oblique angle to 'the axis of rotation of the mandrel.

Having now described my invention what l claim is: v

1. The combination of a rotative mandrel, a stationary guide concentric therewith, a stat-ionary support for a strip, means to rotate said mandrel, a roll located obliquely to the axis of the mandrel, and means for positively rotating'said roll independently of the wound strip to propel the strip that iswound on the mandrel.

2. rlhe combination of a rotative mandrel, a spirallike guide concentric therewith, means for rotating said mandrel, a stationary support for a strip, a roll adapted to bear on the strip wound on the mandrel, said roll being located in a plane at an oblique angle to the axis of the mandrel for pushing the strip along the mandrel, and means for rotating said roll.

3. rll`he combination of a rotative mandrel, a spiral-like guide concentric therewith, means for rotating said mandrel, a stationary support for a strip, a roll adapted to bear on the strip wound on the mandrel, said roll being located in a plane at an oblique angle to the axis of the mandrel for pushing the strip along the mandrel, and gearing connecting said mandrel. and said shaft for rotating said roll in the direction reverse to the rotation of the mandrel.

4. rlhe combination'of a rotative mandrel, a stationary support for a strip, and a. guide for the support, with a support for another. strip, and means for rotating said support vbodily around the mandrel in the same direction as the mandrel.

5. The combination of a rotative mandrel, A .l

a stationary support for a strip, and a stationary guide for the strip, with a support.

for another strip, and means for rotating saidsupport bodily yaround the mandrel in the same direction as the mandrel.

6. The combination of a rotative mandrel, a stationary guide associated therewith, a stationary support for a strip, means to rotate said mandrel, and means to propel a strip that is wound on the mandrel, with a support for another strip, and means for rotating said support bodily around the mandrel during rotation of the latter to lay a strip around the first wound strip,

7. The' combination of a rotative mandrel, a stationary guide associated therewith, a stationary support for a strip, means to ro- -tate, said mandrel, and means to propel a strip that is wound on the mandrel, with another support for a strip, and means for rotating sald support around the axis of the l mandrel in the same direction as the latter and simultaneously therewith at a speed to cause winding of the strip upon the first wound strip.

8. rfhe combination of a rotative mandrel, a guide associated therewith, a stationary support for a strip, means to rotate said mandrel, and means to propel a strip that is wound on the mandrel, with a hollow shaft alined with the mandrel, a support for a strip carried by said shaft, and means for rotating said shaft and said mandrel simultaneously at a speed to cause winding of the strip upon the first wound strip.

9. rl`he combination of a rotativemandrel, a guideassociated therewith, means for rotating said mandrel, a stationary support for strip, a roll adapted to bear on a strip wound on the mandrel for pushing the strip along the mandrel, and means for rotating said roll, with another support for a strip, and means for rotating said support around the axis of the mandrel to lay a strip spirally around the first wound strip.

10. The combination` of a rotative mandrel, a guide associated therewith, means for rotating said mandrel, a stationary support for a strip, a roll adapted to bear on al strip Wound on the mandrel, said roll being located in a plane at an oblique angle tothe axis of the mandrel for pushing the strip along the mandrel,`and means for rotating said roll, with another support for a strip, and means' for rotating said support around the axis of the mandrel.

11. The combination of arotative mandrel, a guide associated therewith, means for .rotating said mandrel, a support for a strip,

a. roll adapted to bear onl the strip wound on the mandrel for pushing the same along the mandrel, and means for positively rotating said roll, with another support, and means for rotating said support around the axis of the mandrel in the same direction as the mandrel and at a speed greater than the speed of rotationof the mandrel to lay the strip on the first wound strip,

12. The combination of a rotative mandrel, a guide associated therewith, means for rotating said mandrel, a support for a strip,

a roll adapted to bear on the strip wound on lthe mandrel, said roll being located in a plane at an oblique angle to the axis of the mandrel for pushing the same along the mandrel, and means for rotating said roll, with another support for a strip, and means for rotating'said support around the axis fof the mandrel in the same direction as the mandrel and at a speed greater than the speed of rotation of the mandrel.

13.' The combination of a rotative mandrel, a guide associated therewith, a stationary support for a strip, means to rotate said mandrel, and means to propel a strip that is wound on the mandrel, with a hollow shaft alined with the mandrel, a support for a strip carried by said shaft, means to adjust said support angularly with res ect to the axis of the mandrel, and means or rotating said shaft and said mandrel simultaneously.

14. The combination of a mandrel provided with a shaft, means for rotatively supporting the latter, a guide surrounding the mandrel and a stationary support for a strip, a friction roll located at an angle with respect to the axis of the mandrel to push a wound'r strip along the latter, gearing for rotating said roll coincidently with the rotation of the mandrel, a shaft 14, and gearing connecting said shaft with the first named shaft,

with a shaft alined with the mandrel, a support for a reel carried by said shaft, a driving shaft and a gearing connecting the driving shaft with the lshaft carrying the reel support for 'rotating the latter in the same direction as the mandrel.

Signed at New York city, in the county of New York and State of New York, this 23rd day of August, A. D. 1907.

GEORGE ApLUTZ.

Witnesses:

T. F. BoUnNE, RALPH H. RAPHAEL. 

